Given that the results of the current study indicate an inverse relationship between PitNET cells assessed and Ki‐67 PI obtained, a cut‐off of ≥3% in an average of 4200 cells may translate to a higher Ki‐67 cut‐off for the assessment of 500–1000 tumour cells traditionally recommended in older guidelines and currently still employed in clinical practice. Here, MKI67 is linked to neoplasm.